In this paper, the existence of strictly positive solutions for N-species nonau- tonom ous Kolm ogorov com petition system s is studied. By applying the Schauder's fixed point theorem som e new sufficient condit...In this paper, the existence of strictly positive solutions for N-species nonau- tonom ous Kolm ogorov com petition system s is studied. By applying the Schauder's fixed point theorem som e new sufficient conditions are established. In particular, for the alm ost periodic system , the existence of strictly positive alm ostperiodic solutions is obtained. Som e previous results are im proved and generalized.展开更多
TWENTY one-year-old Fan Chunmei,a singer from an artensemble of the Chinese People‘s Liberation Army,won firstprize in the fourth Sound of Asia International Popular SongCompetition,held in Kazakhstan on July 19.Ai J...TWENTY one-year-old Fan Chunmei,a singer from an artensemble of the Chinese People‘s Liberation Army,won firstprize in the fourth Sound of Asia International Popular SongCompetition,held in Kazakhstan on July 19.Ai Jing,from LiaoningProvince,won the Alma-Ata Mayor’s Prize.She sang“My 1997.”Yuan Chenyie of the China Opera Theater took second prize inthe Classical division of the Tokyo International Vocal Music Com-petition,held in Tokyo in June this year.展开更多
Purpose:Traumatic lumbar hernia(TLH)constitutes a protrusion of content through a defect in the posterior abdominal wall,as a result of injury.This rare entity has been described in limited number of cases.Methods:A s...Purpose:Traumatic lumbar hernia(TLH)constitutes a protrusion of content through a defect in the posterior abdominal wall,as a result of injury.This rare entity has been described in limited number of cases.Methods:A systematic review of the literature was performed according to the meta-analysis of observational studies in epidemiology guidelines.The English literature from 1990 until 2021 was reviewed,using PubMed,EMBASE and Google Scholar bibliographic databases,to identify case reports and case series with patients that were diagnosed with TLH.For each eligible study,demographics,clinical presentation,hernia characteristics,preoperative imaging investigations,operation details,and postoperative data were extracted for assessment.Statistical analysis was performed on SPSS,version 20.0.Results:A total of 62 studies were included for review,with 164 patients with TLH.Mean age was(42.6±14.3)years(47.6%males,31.1%females,gender not specified in 35 cases).Mean diameter of hernia neck was(6.3±3.1)cm,while the triangles of Petit and Grynfeltt were affected in 74.5%and 14.6%,respectively.Patients diagnosed in the emergency setting account for 54.2%,with CT scan establishing diagnosis in all but one case(97.7%).A delayed diagnosis was made in 45.8%,at a mean 1 year following trauma.Flank bulging(82.8%)and chronic back pain(34.3%)were the most frequent symptoms.In both delayed and acute group,open surgery(63.6%and 92.3%,respectively)was the preferred surgical approach.Postoperative complications were reported in 11.4%of acute and 15.0%of delayed patients.Hernia recurrence was 7%.Conclusions:TLH is uncommon with 164 cases described since 1990.CT scan is the gold standard in diagnosis.Open surgery is generally the preferred approach,particularly in the emergency setting.Acute TLH can be treated either by primary suture repair or mesh,depending on the local conditions,whereas delayed cases usually require a mesh.展开更多
Pourfour du petit综合征系因交感神经传导径路中,自下丘脑交感神经中枢往下至支配头颈上肢段任一部位刺激性病损所致。其临床表现与Horner征恰恰相反,表现为病变侧瞳孔散大、睑裂开大、眼球突出、头颈上肢或半身皮肤血管收缩以及出汗...Pourfour du petit综合征系因交感神经传导径路中,自下丘脑交感神经中枢往下至支配头颈上肢段任一部位刺激性病损所致。其临床表现与Horner征恰恰相反,表现为病变侧瞳孔散大、睑裂开大、眼球突出、头颈上肢或半身皮肤血管收缩以及出汗增多。展开更多
Peste ties petits ruminants is a kind of acute eontagious disease infecting goats anti sheep. In this study, antibtly monitoring and tracking of healthy goat and sheep immunized by peste des petits ruminants vaccine i...Peste ties petits ruminants is a kind of acute eontagious disease infecting goats anti sheep. In this study, antibtly monitoring and tracking of healthy goat and sheep immunized by peste des petits ruminants vaccine in Changping District of Beijing City were conducted, aiming at providing a reference for the devel- opment of effective immunization procedures.展开更多
近日,2016年度睡莲新品种比赛（N ew W aterlily C om petition）获奖名单出炉：‘舞会皇后’及‘少女’获耐寒睡莲类冠、亚军;‘维吉尼亚·麦克莱恩’及‘星系’获热带睡莲类冠、亚军;‘侦探艾丽卡’及‘玛蒂妮娜’获亚属间杂交种...近日,2016年度睡莲新品种比赛（N ew W aterlily C om petition）获奖名单出炉：‘舞会皇后’及‘少女’获耐寒睡莲类冠、亚军;‘维吉尼亚·麦克莱恩’及‘星系’获热带睡莲类冠、亚军;‘侦探艾丽卡’及‘玛蒂妮娜’获亚属间杂交种睡莲类冠、亚军,另外,‘侦探艾丽卡’及‘维吉尼亚·麦克莱恩’获年度最佳新品种睡莲冠、亚军（图1）。笔者育成的睡莲新品种‘侦探艾丽卡’在此比赛中成为年度双料冠军,并在国际睡莲与水景园协会获得了国际权威登录。展开更多
文摘In this paper, the existence of strictly positive solutions for N-species nonau- tonom ous Kolm ogorov com petition system s is studied. By applying the Schauder's fixed point theorem som e new sufficient conditions are established. In particular, for the alm ost periodic system , the existence of strictly positive alm ostperiodic solutions is obtained. Som e previous results are im proved and generalized.
文摘TWENTY one-year-old Fan Chunmei,a singer from an artensemble of the Chinese People‘s Liberation Army,won firstprize in the fourth Sound of Asia International Popular SongCompetition,held in Kazakhstan on July 19.Ai Jing,from LiaoningProvince,won the Alma-Ata Mayor’s Prize.She sang“My 1997.”Yuan Chenyie of the China Opera Theater took second prize inthe Classical division of the Tokyo International Vocal Music Com-petition,held in Tokyo in June this year.
文摘Purpose:Traumatic lumbar hernia(TLH)constitutes a protrusion of content through a defect in the posterior abdominal wall,as a result of injury.This rare entity has been described in limited number of cases.Methods:A systematic review of the literature was performed according to the meta-analysis of observational studies in epidemiology guidelines.The English literature from 1990 until 2021 was reviewed,using PubMed,EMBASE and Google Scholar bibliographic databases,to identify case reports and case series with patients that were diagnosed with TLH.For each eligible study,demographics,clinical presentation,hernia characteristics,preoperative imaging investigations,operation details,and postoperative data were extracted for assessment.Statistical analysis was performed on SPSS,version 20.0.Results:A total of 62 studies were included for review,with 164 patients with TLH.Mean age was(42.6±14.3)years(47.6%males,31.1%females,gender not specified in 35 cases).Mean diameter of hernia neck was(6.3±3.1)cm,while the triangles of Petit and Grynfeltt were affected in 74.5%and 14.6%,respectively.Patients diagnosed in the emergency setting account for 54.2%,with CT scan establishing diagnosis in all but one case(97.7%).A delayed diagnosis was made in 45.8%,at a mean 1 year following trauma.Flank bulging(82.8%)and chronic back pain(34.3%)were the most frequent symptoms.In both delayed and acute group,open surgery(63.6%and 92.3%,respectively)was the preferred surgical approach.Postoperative complications were reported in 11.4%of acute and 15.0%of delayed patients.Hernia recurrence was 7%.Conclusions:TLH is uncommon with 164 cases described since 1990.CT scan is the gold standard in diagnosis.Open surgery is generally the preferred approach,particularly in the emergency setting.Acute TLH can be treated either by primary suture repair or mesh,depending on the local conditions,whereas delayed cases usually require a mesh.
文摘Peste ties petits ruminants is a kind of acute eontagious disease infecting goats anti sheep. In this study, antibtly monitoring and tracking of healthy goat and sheep immunized by peste des petits ruminants vaccine in Changping District of Beijing City were conducted, aiming at providing a reference for the devel- opment of effective immunization procedures.
文摘近日,2016年度睡莲新品种比赛（N ew W aterlily C om petition）获奖名单出炉：‘舞会皇后’及‘少女’获耐寒睡莲类冠、亚军;‘维吉尼亚·麦克莱恩’及‘星系’获热带睡莲类冠、亚军;‘侦探艾丽卡’及‘玛蒂妮娜’获亚属间杂交种睡莲类冠、亚军,另外,‘侦探艾丽卡’及‘维吉尼亚·麦克莱恩’获年度最佳新品种睡莲冠、亚军（图1）。笔者育成的睡莲新品种‘侦探艾丽卡’在此比赛中成为年度双料冠军,并在国际睡莲与水景园协会获得了国际权威登录。
